This is a Grade 5 Titanium 2 Pack of 17mm head bolts for the front lower control arm to bolt into the subframe.
EG DC Steering rack brackets OE or billet
https://gdevelopment.us/products/subframe-steering-rack-6pk
EG DC Subframe Collars
https://gdevelopment.us/products/2-10mm-w-washer-for-eg-dc-subframe-collars
Application:
EG DC Chassis Subframe
Material:
Ti-6Al-4V